Add note for AD domain usernames in MSSQL (#9743)
Add note for AD domain usernames in MSSQL (#9743)

Adding a note that `vaultuser` might be part of the AD domain like `DOMAIN\vaultuser`.
rnaveiras/vault,rnaveiras/vault,hartsock/vault,rnaveiras/vault,hartsock/vault,rnaveiras/vault,hashicorp/vault,hashicorp/vault,hashicorp/vault,hartsock/vault,hashicorp/vault,hashicorp/vault,hashicorp/vault,rnaveiras/vault,hartsock/vault,hartsock/vault